Lubricating device.



w. H. CLEHM.

LUBRICATING DEVICE.

APPLICATWN FILED DEC. 5. I9l6.

Patented Jan. 23,1917.

INVENTOR V/zllmmll 6765727 ATTORNEY UNTTED STATES PATENT orrmnnunnrcnrme nnvrcn.

Specification of Letters Patent.

Patented J an. 23, 191?.

Application filed December 5, 1916. Serial 1%. 135,212.

To all whom it may concern:

Be it known'that 1, WILLIAM H. CLEHM, citizen of the United States,residing at Glassboro, in the county of Gloucester and State of NewJersey, have invented certain new and useful Improvements in LubricatingDevices, of which the following is a specification.

This invention relates to lubricating devices and has for its object theprovision of a simple positive and certain means for causing the certaindelivery of a lubricating oil to a journal bearing, and is particularlyuseful in connection with the axle bearings of railway cars.

Another object of the invention is to provide a lubricating device thatincludes a pumping system for forcing lubricating oil from a reservoiror other holder directly to the bearing to be lubricated.

A further object of the invention is to provide a device for the purposedescribed which may be applied to any journal and the oil delivered tothe bearing, even though the latter be at a considerable distance fromthe point of application of the device to the journal.

With the above as the principal objects in view the invention consistsof the novel construction, combination, and arrangement of partshereinafter described, pointed out in the claims and illustrated in theaccompanying drawings in which Figure 1 is an end elevation of a railwaycar axle with the lubricating device in position thereon, portions ofthe latter being shown in section, Fig. 2 is a side elevation partly insection of the same parts, and Fig. 3 is a bottom or inside view of anaxle brass.

In the drawings indicates the end of a railway car axle the terminalportionbf which is flanged as usual as at 11. The axle l0 bears at itstop against the inner side of a semi-cylindrical bearing or brass 12through the center of which is formed a perforation 13 for the passageof the lubricating oil to the axle 10. The outer end of the perforationleads from a shallow depression or counter sink 14 to direct the oilinto the perforation and prevent it from spreading over the outside ofthe brass.

The inner end of the perforation 13 communicates with a longitudinalchannel 15 formed in the top of the bearing surface'of v the brass 12and from said channel smaller transverse channels 16 are formed in theinner concave surface of the bearing by means of which the lubricant isdistributed over the surface of. the axle 10.

On the end of the axle 10 is a cam disk 17, the latter having a shortcylindrical hub 18 projecting from one side in the axis of said cam theend of which hub bears against the end of the axle 10 and is securedthereto by bolts 19. Journaled on the hub 18 is a supporting arm 20 theenlarged upper end or head 21 of which encircles the hub which freelyrotates in said head. Rigidly secured on the lower end of the arm 20 isa pump 22, the cylinder 23 of which is connected to said arm andprojects downwardly therefrom to a greater or lesser distance accordingto the circumstances. The upper end of the cylinder 23 is enlarged as at24 for a portion of its length, the unction between the cylinder and theenlarged portion forming a shoulder 25.

Slidable within the cylinder 23 is a cylindrical piston 26, the upperend of which carries a flange 27 that fits snugly in the enlargedportion 24 of the cylinder but is capable of sliding freely therein in alongitudinal direction, The upper or flanged end of the piston bears aainst the under surface of the cam disk 1% contact with said camby aspiral spring 28 that bears at its ends respectively against the flange27 and the shoulder 25. The cam disk 17 has a' regular curvature withprojecting portions 29 diametrically opposite each other so that uponeach rotation of the car axle 10 the piston plunger 26 will make twostrokes or movements in the cylinder 23.

The bottom 30 of the cylinder '23 is provided with a short nipple 31having an opening therethrough leading into the cylinder and exteriorlythreaded, upon which nipple is screwed one end of a short tube 32, theopposite end of which is enlarged as at 33 in the form of a shallowfunnel. The open end of the funnel is covered by a screen 34: made ofwire cloth or any other suitable material to prevent the passage of dirtwith the oil into the pump cylinder 23. Near the lower end of the shorttube 32 is a transverse partition 35 having an opening therethrough andformed with a seat on its upper side for a ball valve 36 held againstsaid seat by a spring 37 within the tube beand is held in tween saidvalve and the lower end of the nipple 31. Extending laterally from thebottom of the cylinder is a short tubular stem 38, the outer end ofwhich is closed by a plug 39. The inner end is separated from thecylinder 23 by a perforated valve seat 40, against the outer side ofwhich is a valve 41 held in place by a spring 42 bearing on said valveand on the inner end of the plug 39. A small outlet tube 43 is screwedinto the top of the stem 38 and leads upwardly in the most convenientand direct manner to a point above the perforation 13 where its end isbent down-ward so as to discharge into said perforation. The pump 22 isheld in proper position by a brace rod 44 connected at one end to an ear45 on the pump cylinder, and at its other end to some convenient pointon the journal box or other stationary part.

In using this device the cam 17 is bolted against the end of anaxle 10as shown with the hub, 18 extending through the head of the supportingplate 20 and the pump 22 extending downward therefrom. The spring 28maintains .the plunger or piston 26 against the undersurface of the cam.The enlarged end 33 of the short tube 32 is inserted in a suitablereceptacle containing lubricating oil and the outlet pipe 43 carried toa point above the axle where its end is turned downwardly as shown. everrotary motion is imparted to the axle 10 the cam 17 also revolves andoperates the piston 26 twice with each revolution, these reciprocationsserving to draw oil upwardly through the pipe 32 into the cylinder 23and force said oil past the valve 31 and up the pipe 43, from which itis discharged into the perforation 13 of the journal brass 12.

This invention although described as be- I ing particularly designed forcar axles may be used upon axles of other kinds, and machinery shafting,and also, instead of being suspended in a vertical position it may beplaced in a horizontal gle therebetween.

What is claimed is 1. In a lubricating device, the combination of apump, means adapted to be fixed upon the axle or shaft for reciprocatingthe plunger ofthe pump, inlet and outlet pipes at one end of said pumpsaid outlet pipe leading to the bearing to be lubricated, and means forsuspending said pump from the plunger reciprocating means.

2. In a lubricating device, the combination of a pump having areciprocating plunger adapted to projectat one end from the cylinder ofthe pump, means adapted to be attachedto a rotatable axle or shaft forreciprocating said plunger, valve inlet and outlet pipes connected tothe opposite end of the pump, and supporting means for the pump mountedupon the rotating plunger operating means.

3. In a lubricating device, the combination of a pump having areciprocating plunger, means capable of attachment to the end of arotatable shaft or axle for reciprocating said plunger, a delivery pipeleading from said pump to the bearing to be lubricated, and suspendingmeans for the pump mounted on the plunger reciprocating means.

4. In a lubricating device, the combination of a pump, a plungerreciprocating therein, a cam adapted to be secured against the end of ajournal or shaft for reciprocating said plunger, a valved inlet tube forthe pump adapted to enter an oil receptacle, a valved outlet tubeleading to the bearing to be lubricated, and a supporting platerotatably mounted on the hub of said cam and fixed to said pump.

.In testimony whereof I aflix my signature in presence of two witnesses.

WILLIAM H. CLEHM.

position or at any an- Witnesses:

HENRY A. CLEHM, GEORGE HIGGINS.

